"The Chatham School Affair" by Thomas H. Cook is a mystery novel set in the small town of Chatham, New York in the 1920s. The story revolves around a murder that took place at the Chatham School, an elite boarding school for boys. The victim was a talented and popular student named John Dodge, and the prime suspect is the school's art teacher, Edward Sawyer. The narrative is presented from the perspectives of several characters, including Henry Griswald, the former student who discovers Dodge's body; Maud Coffin, a teacher at the school who becomes romantically involved with Sawyer; and Stephen Holcomb, the town's prosecutor who is determined to bring the killer to justice. As the investigation unfolds, secrets are revealed and tensions rise, leading to a shocking and unexpected conclusion. "The Chatham School Affair" is a gripping and atmospheric novel that explores the themes of love, loss, and the dark side of human nature.